Portable furnace for heating rails.



No. 778,117. P-ATEN TED DEC, 20, 1904.1

' G. A. A3. GULIN. v

PORTABLE FURNAGBFOR HEATING RAILSQ APPLICATION 12mm JULY 8,1903.

. UNITED STATES Patented December 20, 1904.

' PATENT OEFrcE.

GUSTAV AMANDUS ANDREAS OULIN, or HAMBURG, GERMANY.

PORTABLE FURNACE FOR HEATING RAILS.

SPECIFICATION forming part of Letters Patent No. 778,117, dated December20, 1904. I

Application filed July 8,1903. Serial No. 164,719.

T0 aZZ whom, it nuiy concern:

Be it known that I, GUSTAV AMANDUS AN- DREAS CULIN, a subject of theGerman Emperor, and a resident of Hamburg, Germany, have inventedcertain new and useful Improvements in Portable Furnaces for HeatingRails orthe Like, of which the following is a specification.

My invention relates to furnaces to be used in the re-formation ofdeformed rails and girders of all kinds, more particularly deformed railends of railway-tracks, without removing such rails from their places.

The extremities of rails of ordinary and street railways upon which thewheels run are deformed by thehammering action of the wheels. The end ofeach rail upon which the wheels first roll receives an indention, the

material at the same time spreading laterally, and the rail end whichthe wheels leave is rounded off.

My invention consists in an improved portable furnace adapted to heatthe parts which receive these shocks and which it is desired to repair;and it comprises a trough-shaped box having a suitable fireproof liningand a specially-constructed grate formed to fit on 'or over the girderor rail and extend down on.

both sides of the web, thus almost completely encompassing the rail,whereby a rapid, thorough, and uniform heating of every part is insured.

In the accompanying drawings-Figure 1 is a vertical cross-section of theimprovedfurnace or heater; Fig. 2, a plan or top view of the same, andFig; 3 illustrates a modification.

Similar characters of reference denote similar parts throughout theseveral figures.

A trough-shaped sheet-iron receptacle, as l, is lined internally withchamotte blocks or plates, as 2, an intermediate layer of asbestosplates being provided, if desired. A frame for holding and transportingthe receptacle consists of four standards 3, each of which has aninwardly-extending bracket conforming tothe shape of the box and actingas braces for its two sides. The receptacle is arranged with its lowersmaller aperture on suitably-shaped cross-supports 4:, which may berigidly connected with the brackets, and

these cross-supports are united so as to form upper part of thereceptacle is tightly closed by a cover 6, of sheet-iron lined withchamotte. 1n the top of this cover is fitted an air-admission pipe 7,from which appropriate nozzles 8 extend into the receptacle. When thisreceptacle or furnace is placed upon the object to be heateda rail orgirder, for example and a blast formed by means of powerful bellows, thecurrent of cold air will first of all have to traverse the upperincandescent layers of coke, which will raise it to a high temperature,in which condition it reaches the lowest layer of coke resting upon thegrate, making it highly incandescent, the direction of the air-currentbeing indicated in the drawings by arrows. In this manner not only thehighest layer of coke, but also the whole of the combustion-air, whichis at a very high temperature, is brought, owing to the shape of thereceptacle and grate, into extremely intimate contact with the part tobe heated, so that the desired temperature is obtained in the shortestpossible time. If it is desired to heat the whole surface of the girderor the like, the grate 4 5, Fig. 3, is arranged to duits 9, with nozzles10, are provided, which, if necessary, are supplied with separatebellows if the section to be heated is very large.

It is obvious that one and the same furnace may be used in conjunctionwith different forms of grate for different sections.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

1. An apparatus for heating rails, girders and the like comprising afireproof receptacle open at the bottom, standards for supporting thesame, cross-bars connecting the Standards projecting into the receptacleat each end, and a plurality of longitudinally-arranged bars 'mounted inthe cross-bars, for the purpose specified. g

2. An apparatus for heating rails, girders and the like comprising abottomless'fireproof receptacle having downwardly-converging sides,standards supporting said sides, crossbars connecting said standards inpairs and cover the entire section, and lateral air-con-- a grate bymeans of longitudinal bars 5. The

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projecting through the bottom of the receptacle near the end Wallsthereof, and a plurality of longitudinally-arranged bars mounted in thecross-bars forming a chamber in the re-.

ceptaele on each side of the cross-bars.

3. An apparatus for heating rails, girders and the like comprising abottomless fireproof receptacle having downwardly-converging sides,standards having inclined brackets adapted to embrace the sides,cross-bars connecting the brackets and projecting into the

